ch 12

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The carbon skeleton of an alkane is shown below. How many hydrogen atoms are bonded to the carbon marked with a *?

0

The carbon skeleton of an alkane is shown below. How many hydrogen atoms are bonded to the carbon marked with a *?

1

What is the IUPAC name of the molecule shown?

1,1-dimethylcyclobutane

What is the IUPAC name of the molecule shown?

1,2-dimethylcyclobutane

How many hydrogens are present in a molecule composed of a six membered ring of carbon atoms and no double or triple bonds?

12

How many structural isomers are possible for the molecular formula, C4H10?

2

What is the IUPAC name of the compound shown? (CH3)3—C—CH2—CH2—CH3

2,2-dimethylpentane

Monochlorination of Pentane, C5 H12 , leads to formation of how many different products?

3

The carbon skeleton of an alkane is shown below. How many hydrogen atoms are bonded to the carbon marked with a *?

3

What is the minimum number of carbons that must be present in a molecule to have a secondary carbon?

3

What is the IUPAC name of the compound shown?

3,3-dimethylhexane

What is the IUPAC name of the compound shown?

3,5-dimethyloctane

In straight-chain alkanes, the carbon atoms on each end of the molecule always form bonds with ________ atoms of hydrogen; the carbons within the molecule always form bonds with ________ hydrogen atoms.

3; 2

What is the IUPAC name of the compound shown?

4-isopropyldecane

How many carbon atoms are there in the longest continuous chain of the molecule shown?(CH3)2CH—(CH2)5—CH3

8

Which list includes all the elements that would be found in an alkane with an amine group?

C, H, N

Which molecule is an isomer of the molecule shown?

CH3 | CH3 CH2 CH2 CH2 CHCH3

The condensed structure of 2,2,4,4-tetramethyl-heptane is

CH3 CH3 | | CH3 CHCH2 CHCH2 CH2 CH3 | | CH3 CH3

The condensed structure of 2,4-dimethyl-heptane

CH3 CHCH2 CHCH2 CH2 CH2 CH3 | | CH3 CH3

The condensed structure of 2,4-dimethyl-hexane is

CH3 CHCH2 CHCH2 CH3 | | CH3. CH3

The condensed structure of n-octane is

CH3(CH2)6CH3

When hydrocarbons undergo complete combustion, the product(s) is(are)

CO2 and H2O.

Which atom is least likely to form a polar covalent bond with carbon?

H

Which substance is not reactive with respect to alkanes?

H2

Which molecule is not an isomer of the molecule shown? C2H5—O—C2H5

O || CH3 CH2 -C-CH3

the functional group which illustrates an ester is

O || R-C-O-R

Which of the statements about the behavior of the element carbon in organic molecules is incorrect?

When carbon forms four single bonds, the bond angles are 90°.

The alkyne functional group is

a carbon-carbon triple bond.

The alcohol functional group is

a carbon-oxygen-hydrogen group.

The arene or aromatic functional group is often represented as

a six-membered ring with three double bonds.

The functional group illustrated by R—OH is an

alcohol.

the functional group illustrated below is an O // R-C \ H

aldehyde

the family of organic compounds with functional groups that do not consitent only of hydrocarbons is

aldehydes

Which family of organic compounds does not contain any multiple bonds?

alkyl halides

all of the families below include functional groups which contain oxygen except

alkyl halides

the functional group illustrated below is an O || R-C-NH2

amide

Which functional group does not contain oxygen?

amine

Which family of organic molecules is a hydrocarbon?

aromantic

The functional group illustrated by R—O—R' is an

ether.

Which group is the best description of the properties of alkanes?

flammable, non-reactive, insoluble in water

When an alkane reacts with an element from group 7A, the reaction is referred to as

halogenation.

The molecule shown is named as a substituted ________ because ________. CH3. CH3 |. | CH3 CHCH2. CHCHCH3 |. | CH3. CH3

hexane; it contains six atoms of carbon in its longest chain.

The carbon atom marked with * is a ________ carbon atom.

primary

The name of the hydrocarbon with three carbon atoms and having only single bonds between carbon atoms is

propane.

the carbon atom marked with * is a ________ carbon atom.

quaternary

In the molecule 3,3-dimethylhexane, carbon number two is

secondary.

Which is not a property of most alkanes?

soluble in water

The carbon atom marked with * is a ________ carbon atom.

tertiary

Which factor is most important in determining the chemistry of an organic molecule?

the functional groups

which of the following statements about allkyl groups is incorrect

they are derived from alkenes

all of the following statements are general properties of organic compounds except

they usually behave as electrolytes in solution


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